canneloid

canneloid

[′kan·əl‚ȯid]
(geology)
Coal that resembles cannel coal.
Coal intermediate between bituminous and cannel.
Durain laminae in banded coal.
Cannel coal of anthracite or semianthracite rank.
References in periodicals archive ?
Similarly, the three Scottish sliders so far analysed have been of cannel coal or canneloid shale, while two others (from Hallmyre, Scottish Borders, and Beacharra, Argyll & Bute) are likely to be of jet.
Inverbrora canneloid shale, for example, had been used for the necklace from Burgie Lodge Farm, Moray.
least laminar) kinds of cannel coal/ canneloid shale.